<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        /*div{*/
            /*color:red;*/
        /*}*/

        *{
            color: green;
        }

        /*#dazhuang{*/
            /*color:green;*/
        /*}*/
        /*#xuefei{*/
            /*color:green;*/
        /*}*/
        /*.c1{*/
            /*color: green;*/
        /*}*/
        /*div.c1{*/
            /*color: green;*/
        /*}*/

    </style>
</head>
<body>
<div>
    alexdsb
</div>

<span>taibaidsb</span>

<div id="dazhuang" class="c1">
    大壮dsb
</div>
<div id="xuefei" class="c1">
    雪飞大美女
</div>

<p class="c1">
    你是个p
</p>

</body>
</html>